Methods: Digital macro-photogrammetry (DMP) method was used, whereby computer images of the canine were generated from multiple synchronous digital photos of a patient taken during clinical follow-ups. Time intervals were recorded from beginning of the treatment before the insertion of the spring, (T0), to the last follow-up session of canine retraction, (T8). All movements of the canine were calculated from the generated three-dimensional co-ordinates (X, Y, Z).
Results: The canine was distalized about 6.78 mm over a period of 258 days. The maximum velocity of the canine movement was found to be approximately 1 mm/month.
Conclusion: It was found that the use of DMP can be applied to monitor orthodontic tooth movement in clinical orthodontics as the use of computers and digital photographs have been incorporated in the majority of orthodontic practices.
Recommendations: This technique eliminates unnecessary exposure of patient to radiation as well as reduces cost and time associated with incorrect orthodontic treatment mechanics.